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196 DS6000 Series: Concepts and Architecture
10.1 Introduction
The IBM TotalStorage DS Command-Line Interface (the DS CLI) is a software package that
allows open systems hosts to invoke and manage Copy Services functions as well as to
configure and manage all storage units in a storage complex. The DS CLI is a full-function
command set. In addition to the DS6000 and DS8000, the DS CLI can also be used to
manage Copy Services on the ESS 750s and 800s, provided they are on ESS code versions
2.4.2.x and above. All references in this chapter to the ESS 800 also apply to the ESS 750.
Equally, references to the ESS F20 also apply to the ESS E20.
Examples of what you can perform include:
Display and change your storage configuration, for example, create and assign volumes.
Display existing Copy Services relationships and settings, for example, confirm that
remote copy relationships are active and in sync.
Create new Copy Services relationships and settings, for example, create a new
FlashCopy relationship.
For users of the ESS 800, the DS CLI provides the following
new capabilities:
The ability to create a remote copy relationship between the ESS 800 and the DS8000 or
DS6000.
The ability to establish dynamic FlashCopy and remote copy relationships on ESS 800
storage servers without using saved tasks.
Prior to the DS CLI, the ESS Copy Services CLI generally did not allow a script to directly
invoke a FlashCopy or Remote Mirror and Copy relationship. Instead, a task had to be
created and saved first, using the Web Copy Services GUI. A script could then invoke this
saved task. Now with the DS CLI, commands can be saved as scripts, which significantly
reduces the time to create, edit and verify their content.
The DS CLI uses a syntax that is consistent with other IBM TotalStorage products. All new
products will also use this same syntax.
Important reference manuals for users of the DS CLI are the
IBM TotalStorage DS8000
Command-Line Interface User’s Guide
, SC26-7625, and IBM TotalStorage DS6000
Command-Line Interface User’s Guide
, SC26-7681. These can be downloaded by going to
the relevant section of the following Web site:
http://www-1.ibm.com/servers/storage/support/disk/index.html
10.2 Functionality
The DS CLI can be used to invoke the following storage configuration tasks:
Create userids that can be used with the GUI and the DS CLI
Manage userid passwords
Install activation keys for licensed features
Manage storage complexes and units
Configure and manage storage facility images
Create and delete RAID arrays, ranks, and extent pools
Create and delete logical volumes